CLAMP CHIRURGICAL COUSSINE

PADDED SURGICAL CLAMP

Abrégé anglais

ABSTRACT OF THE DISCLOSURE

A padded surgical clamping device used for
temporary clasping, ducts or blood vessels. It com-
prises of a standard clamping device provided with a
soft pad on each jaw of the clamp. The pad may be
permanently attached, removable, or, replaceable by
other pads of different levels of hardness or with
different textures on the clamping surface of the pad
depending on the size or sensitivity of the tissue to
be clamped.

Revendications

The embodiments of the invention in which an exclusive pro-
perty or privileges are claimed are defined as follows:
Claim 1. A surgical clamp having two clamping jaws
and comprising a soft pad placed over each
said jaw, the pad including two cavities,
one of said cavities being tightly located
over each said jaw, the other cavity being
filled with a fluid or solid and hermeti-
cally sealed, each pad having a clamping
surface.
Claim 2. A surgical clamp as defined in claim 1
wherein said one cavity engages serrations
in said clamp jaw.
Claim 3. A surgical clamp as defined in claim 1 or
claim 2 wherein said pad is attached to said
clamp jaw by adhesion, fusion or crimping.
Claim 4. A surgical clamp as defined in claims 1 or
2 wherein said surface is smooth.
Claim 5. A surgical slamp as defined in claims 1 or
2 wherein said surface is roughened.

Description

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DESCRIPTIOrl OF P~DD~D VASCUIAR C1AMP



This invention relates to clamps used for
clamping blood vessels, body channels or ducts during
surgical procedures. The type of surgical clamp which
will open when pressure is applied to the grip of the
clamp and will close when the pressure on the grip is
released is well known,
In the practice of surgery, the bulldog clamp
and some other clamps which are modifications of the
bulldog clamp are used for interrupting the blood supply
of the kidney during surgical procedures such as
nephrolithotomy, clamping of vessels during kidney
transplant; for the creation of ar~erio-venous fistula;
the insertion of arterio-venous shunts and many other
surgical operations. Surgical clamps are different in
size and shape depending on the surgical procedure to
be followed. They range from small neuro-surgical clips
to large clamps for temporarily interrupting the blood
supply through the aorta, All such clamps are made from
metal with serrated jaws to provide a ~irm grip on the
tissue, Such devices have the disadvantage of damaging
tissue and the walls of the arteries and veins causing
unnecessary complications such as the formation of clots
where the clamp has been applied to the tissue. It is,
therefore, the object of the present invention to pro-
vide a surgical clamp which prevents damage to tissue
while being applied to the tissue. This may be achieved
by providing a padded surgical clamp equipped with a pad

on each jaw. The pad is composed of a soft material not
damaging to the tissue, the said pad being provided with
two cavities. One of the said cavities is shaped in

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such a manner that it will tightly receive the serrated
edges of the clamp jaw when placed over the jaw of the
vascular clamp. The other cavity of the said pad may
be filled with air, gas or a liquid and then hermetically
sealed, providing a cushioned pad capable of squeezing
vessels firmly, but without damage. Different textures
may be provided on the clamping surface of the pad to
prevent slipping between the clamping surfaces of the
surgical clamp and the tissue. This invention may be
used in conjunction with any surgical instruments that
function as clamping and clasping devices.
The invention will become more apparent by
reference to the following detailed description taken
in conjunction with the drawings in which:
Fig. 1 is a front view of a complete padded
surgical clamp according to the
invention.
Fig. 2 is a top view of a complete padded
surgical clamp.
Fig. 3 is an enlarged cross-sectional top
view of the clamp jaw along section
A - A.
Fig. 4 is an enlarged cross-sectional side
view of the clamp jaw along section
B - B.
Fig. 5 is an enlarged bottom view of the
clamp jaw.
Figure 6 is an enlarged cross-sectional side
view of the clamp jaw along section
C - C.
r In fig. 1 clamp tong 1 and clamp tong 2 are permanently
attached at 3. When pressure is applied to clamp tongs
1 and 2, the jaws of the clamp will open. The art of




the clamp operation is in use for many applications and is not
part of the invention. Pad 4, being enlarged in fig. 4 comprises
of a wall 5 providing cavities 6 and 8. Cavity 8 is filled with
air, gas or liquid or solid and then hermetically sealed at 9.
Texture 10 may be provided to the c1amping surface of pad 4 to
provide anti-slip between pad surface and tissue.